gdc -ofTest.dll test/test.d os/dll.d os/library.d -lmsvcrt-ruby18 -L D:\InstantRails\Ruby\lib -I C:\MinGW\include\d\3.4.5 -I C:\MinGW\include\d\3.4.5\mingw32 -shared -LC:\MinGW\lib\gcc\mingw32\3.4.2 
